.main{
    width: 100%;
    height: 1240px;
}
.main-c{
    width: 1250px;
    height: 1240px;
    margin: 0 auto;
    /* background-color: silver; */
    padding-top: 100px;
}


.main-c .nav .a1{
    
    float: left;
    display: inline-block;
    width: 90px;
    height: 43px;
    
    text-align: center;
    margin-top: 82px;
    margin-left: -20px;
    margin-right: 30px;
    border: 1px solid #2e3b4c;

}
.nav .a1 .s1{
    color: #434545;
}
.nav-item .content a{   
    float: left;
    position: relative;
    
    
}

.nav-item .mask{
    float: left;
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 200px;
    display: none;
    background: #979ca6;
    opacity: 0.5;
    
}

.nav-item .content a:hover .mask{
    display: block;
}
.nav .bk{
    width: 250px;
    height: 130px;
    border: 2px solid #00daed;
    margin-top: 30px;
    margin-left: 30px;

}






.main-c .nav .s1{
    width: 90px;
    height: 43px;
    font-size: 20px;
    color: #434545;
    line-height: 43px;
}
.nav .a1:hover{
    background-color: #00daed;
    
    
}
.nav .a1:hover .s1{
    color: #ffffff;
}
.main-c .nav-item{
    float: left;
}
.nav .nav-item .p1{
    font-size: 16px;
    color: #434545;
    line-height: 8px;
    margin-top: 10px;
}
.nav .nav-item .p2{
    font-size: 13px;
    color: #434545;
    margin-top: 5px;
}
.nav-item .content{
    float: left;
    margin-right: 65px;
}
.nav .wz{
    width: 308px;
    height: 30px;
    border-bottom: 1px solid #434545;
    padding-bottom: 36px;
}
.main-c .nav-item{
    margin-bottom: 77px;
}
.main-c .page{
    float: left;
    width: 300px;
    height: 43px;
    /* background-color: orange; */
    margin-left: 495px;
    margin-top: -20px;
    line-height: 43px;
}

.number{
    float: left;
    color: #434545;
    font-size: 18px;
}
.dot{
    float: left;
    color: #434545;
    margin-left: 27px;
    font-size: 18px;
    letter-spacing: 5px;
}
.more{
    width: 91px;
    height: 43px;
    float: right;
    /* background-color: orangered; */
    text-align: center;
    border: 1px solid #2e3b4c;
    color: #434545;
}
.page .a-n:hover{
    color: #00daed;
}
.page .n-more{
    display: inline-block;
    width: 91px;
    height: 43px;
}
.page a{
    color: #434545;;
}
.content img{
    width: 310px;
    height: 200px;
}